Electric skateboard



FIG. 1 is a front view of an electric skateboard in accordance with the design;

FIG. 2 is a back view of the electric skateboard in FIG. 1;

FIG. 3 is a top view of the electric skateboard in FIG. 1;

FIG. 4 is a bottom view of the electric skateboard in FIG. 1;

FIG. 5 is a right view of the electric skateboard in FIG. 1; and,

FIG. 6 is a left view of the electric skateboard in FIG. 1. 

The ornamental design for an electric skateboard, as shown and described herein. 